Table 2. Binary logistic regression analysis of factors associated with transient congenital hypothyroidism (n=100, r²=0.313, P <0.001).

Variable	Estimate	Standard error	P-value
TSH	0.028	0.012	0.021
Levothyroxine dose at 3rd year of treatment	1.613	0.410	<0.001

Regression analysis contained the following independent variables entered in to the model: birth weight; gestational age; initial TSH and free thyroxine levels; and the levothyroxine dose during treatment period.

TSH, thyroid stimulating hormone.